[U-Boot-Users] how to boot a root.cramfs in ram

[zhuzhenhua]

in vivi if can use bon to set partitionsand in DULG Manual i see
something like "root=/dev/mtdblock2" in BOOTARGS.but i can't find the
defination of mtd partition in /board/smdk2410/smdk2410.c or
smdk2410.h.and i wonder whether i must set "root=/dev/mtdblockX" in my
BOOTARGS or i can just set the physical address of root-cramfs in NAND
flash?


On 6/17/05, Wolfgang Denk <wd at denx.de> wrote:
> In message <50c9a22505061618244cefe187 at mail.gmail.com> you wrote:
> > i use uboot loadb command to place kenerl on 0x32000000, root.cramfs
> > on 0x30800000,and when i type bootm 32000000 30800000, it just boot as
> > there is a ramdisk image.Does uboot support boot cramfs rootfs in ram?
> > what's the command?
> 
> U-Boot can be used to load a cramfs image (or any  other  file)  into
> RAM.  All  the  rest  is  not an U-Boot issue, but a question if your
> Linux kernel knows how to deal with such a setup.
> 
> Best regards,
> 
> Wolfgang Denk
> 
> --
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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>